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#1
05-25-2014, 02:35 PM
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Sunroof Won't Close From Lift Position (help)
It's inevitable - now that my 91 300D no longer leaves a drip something else wants my attention. Two days ago I head an unusual noise while closing the sunroof from the retracted position. Not thinking I opened it in the lift position. Now it won't close 100% on the left side (right side is normal).
I've looked at the service manual and posts but all seem to start by removing the sunroof liner. Since I can't open the sunroof 3/4 to get started I'm at a loss where / how to start. This picture shows it at rest (un-closed)  This picture shows what happens when you try to retract it  In this video you can hear a (sort of popping) noise as it opens In this video shows that the outside (steel panel) stops moving before the headliner. (I was closing it in steps to demonstrate - if you hold the button it closes smooth) In need of suggestions or help because it's bound to rain soon 
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#2
05-25-2014, 09:52 PM
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Although I'm not familiar with your model, many electric sunroof issues I've had and read about come down to the rails being too dry. I'd try cleaning and greasing everything as a first measure. Good luck!
__________________
2009 ML320 Bluetec 1985 300CD 1981 300TD  Past Mercedes 1979 300TD 1982 300TD 2000 E320 4Matic Wagon 1998 E430 1984 300SD 1980 300SD
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#3
05-26-2014, 09:55 AM
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if you remove the cover in the trunk over the sunroof motor, in front of the antenna... there is a bolt you can turn to manually control the sunroof... SLOWLY rotate that bolt, and see if you can control it or if the cable is broken, or if something is binding inside there...
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#4
05-26-2014, 10:25 AM
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Ultimately, I think you may have to remove the motor and separate it from the cable. However, getting a helper may avoid this.
This will allow you to pry the panel back far enough so that you can remove the interior panel. Have a helper turn the nut that VSTECH mentioned, while you pry the panel back. It looks like the frame member that attaches to the cable has been damaged of come loose.
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#5
05-26-2014, 08:37 PM
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S'Roof WOES
I'm afraid you may have a Broken an "Angular Lift Arm"
see link to gsxr's fix of sunroof ALA s. reply #3 w124 sun roof problem
__________________
'84 300SD sold 124.128
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#6
05-26-2014, 09:34 PM
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It's apart, broken lift arm. I'll post details for disassembly when you can't open it later. Right now I need to get an arm and put it together.
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#7
06-04-2014, 12:52 AM
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Always late to the Party!
(Me) [Not checking forums frequently enough]
Re: A/Single /A.L.A. "Angular Lift Arm" Replacement. "If One is OLD enough to fracture... Age and Repetitive Stresses are what allow the "Cheap Plastico" A.L.A. s to go BAD! I'd approach the R+R program just like "Brake Rotors": "DO One ?/(No!)/DO BOTH"
__________________
'84 300SD sold 124.128
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